sha1dc: update from upstream

diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 91c02b8c856abf2c24af9ea23f0ee01710b8cd12..c40c4704486dd9d1a5650562540db7379818ab03 100644 (file)
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -261,6 +261,12 @@ print a message to stderr and exit with nonzero status.
 --show-toplevel::
        Show the absolute path of the top-level directory.
 
+--show-superproject-working-tree
+       Show the absolute path of the root of the superproject's
+       working tree (if exists) that uses the current repository as
+       its submodule.  Outputs nothing if the current repository is
+       not used as a submodule by any project.
+
 --shared-index-path::
        Show the path to the shared index file in split index mode, or
        empty if not in split-index mode.